Replacement by aluminum for the closure panels is one of the common methods for lightening car body. However the application used to be limited into shallow drawing parts like hood because of its low stamping formability. As a solution to cover the low stamping formability of aluminum, Blow forming technology of aluminum which is one of the superplastic forming technologies has been researched ...

Abstract. In this paper, the forming properties of as-rolled 2A97 Al-Li alloy at 370 ~430 ℃ and 0.02~0.08 MPa/min were studied by Superplastic gas-bulging experiment, microstructure mechanical after deformation evaluated analysed means EBSD, TEM other testing methods. The results show that has good superplastic ability, optimum parameters are 390℃, 0.06 MPa/min, maximum height cap cone is 74 mm...

Bronization and carburization of fine-grain superplastic stainless steel is reviewed, and new experimental results for fine grain Ti88.5Al4.5V₃Fe₂Mo₂ are reported. In superplastic duplex stainless steel, the diffusion of carbon and boron is faster than in non-superplastic duplex stainless steel. Further, diffusion is activated by uniaxial compressive stress. Moreover, non-superplastic duplex st...